1967.0000000;-0.6811651
1968.0000000;0.1164762
1969.0000000;-0.3702756
1970.0000000;-0.7816302
1971.0000000;-0.8163947
1972.0000000;-0.2053567
1973.0000000;-1.4286053
1974.0000000;-0.8479306
1975.0000000;-0.4535961
1976.0000000;-1.0168916
1977.0000000;0.4078951
1978.0000000;0.4040793
1979.0000000;-0.2183239
1980.0000000;0.1778933
1981.0000000;-0.0796703
1982.0000000;-0.2760094
1983.0000000;-0.2339211
1984.0000000;0.1624197
1985.0000000;-0.3164487
1986.0000000;-1.2472532
1987.0000000;-0.4622071
1988.0000000;-0.0627441
1989.0000000;-1.2119319
1990.0000000;-0.9864230
1991.0000000;-0.5981447
1992.0000000;-0.5801816
1993.0000000;-0.5543355
1994.0000000;-0.5292251
1995.0000000;0.3239403
1996.0000000;-0.0047452
1997.0000000;-0.6560645
1998.0000000;-1.4443545
1999.0000000;-0.6966338
2000.0000000;-1.0559479
2001.0000000;0.5493135
2002.0000000;-0.9315553
2003.0000000;-2.7371144
2004.0000000;-1.4468143
2005.0000000;-1.9525692
2006.0000000;-1.7133894
2007.0000000;-1.0523353
2008.0000000;-0.9507697
2009.0000000;-2.0680966
2010.0000000;-0.5463822
2011.0000000;-2.0423675
2012.0000000;-1.6927867
2013.0000000;-0.4371873
2014.0000000;-0.6830184
2015.0000000;-2.0128551